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Pacific Coastal & Marine Science Center

1998: Hydrates Cruise in the Gulf of Mexico

Single-Channel Seismic Record Over Hydrate Mound

[ingle-Channel Seismic Record Over Hydrate Mound

Examples of field records for seismic reflection data recorded during cruise M1-98-GM. Data are single channel with no filtering or Automatic Gain Control applied. (A) GI-Gun (35/35) record from MCS line 11 over the hydrate mound area, with underlying high-amplitude reflections, where a detailed seismic experiment was conducted (i.e., over the easternmost sea-floor mound displayed). (B) Water gun record from MCS line 19 near the area of hydrate mounds, showing variable sea-floor and subsurface amplitudes and a high-amplitude "flat spot" that may be free gas.

 

    

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